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Finding the Fourth Proportional to 54,998.65, 82,443.30 and 25,364.80

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Solution

The fourth proportional to 54,998.65, 82,443.30 and 25,364.80 is: 38,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,998.65 : 82,443.30 = 25,364.80 : x
  2. Step 2: Convert to fraction form
    54,998.65/82,443.30 = 25,364.80/x
  3. Step 3: Cross multiply
    54,998.65x = 82,443.30 × 25,364.80
  4. Step 4: Simplify right side
    54,998.65x = 2,091,157,815.84
  5. Step 5: Solve for x
    x = 2,091,157,815.84/54,998.65
  6. Step 6: Final answer
    x = 38,021.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.